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    <title>今天喝什么</title>
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    var arr = ["霸王茶姬","coco","茶百道","益禾堂","书亦","琉璃净","123"];
    var i= Math.floor((Math.random()*arr.length));
        document.write("<h1 style='font-size:36px'>"+arr[i]+"</h1>")
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